EP3420243B1 - Bremsbelag einer scheibenbremse und bremsbelagsatz - Google Patents

Bremsbelag einer scheibenbremse und bremsbelagsatz Download PDF

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Publication number
EP3420243B1
EP3420243B1 EP17706458.1A EP17706458A EP3420243B1 EP 3420243 B1 EP3420243 B1 EP 3420243B1 EP 17706458 A EP17706458 A EP 17706458A EP 3420243 B1 EP3420243 B1 EP 3420243B1
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EP
European Patent Office
Prior art keywords
pad
brake
brake pad
backplate
structural elements
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
EP17706458.1A
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German (de)
English (en)
French (fr)
Other versions
EP3420243A2 (de
Inventor
Dirk Dresen
Josef Schropp
Wolfgang Pahle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Original Assignee
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
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Application filed by Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH filed Critical Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Priority to PL17706458T priority Critical patent/PL3420243T3/pl
Publication of EP3420243A2 publication Critical patent/EP3420243A2/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F16D65/095—Pivots or supporting members therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/04—Attachment of linings
    • F16D69/0408—Attachment of linings specially adapted for plane linings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D2069/004—Profiled friction surfaces, e.g. grooves, dimples
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/04—Attachment of linings
    • F16D2069/0425—Attachment methods or devices
    • F16D2069/0441—Mechanical interlocking, e.g. roughened lining carrier, mating profiles on friction material and lining carrier

Definitions

  • the present invention relates to a brake pad of a disc brake according to the preamble of claim 1.
  • the invention also relates to a brake pad set for a disc brake.
  • Such brake pads are used in disc brakes.
  • the disc brakes are used particularly in commercial vehicles and are often equipped with pneumatic actuation.
  • An embodiment of the brake caliper of such disc brakes is designed as a sliding caliper and is e.g. used in tight spaces.
  • DE 10 2011 118 127 B4 describes a brake pad with a rigid core.
  • EP 2 459 898 B1 relates to a brake pad with a cast carrier plate formed as a cast part, which has raised, integrally formed, form-fitting parts enclosed by a friction mass for holding it.
  • EP 0 731 288 B1 describes a method for producing a brake pad by forming projections.
  • DE 10 2008 003 529 B4 describes a brake pad for a disc brake with ribs and mold means that correspond to the friction mass in the sense of a positive fit.
  • the WO 97/06370 A shows different design variants of a pad backing in which either depressions or elevations are formed on the pad side on the surface of the pad backing plate. Anchoring the friction mass on the backing plate appears to be problematic. In many representations, webs with undercuts or elevations with side undercuts are shown. In particular, the dimensioning of the webs appears very thin, so that they can only provide little resistance to lateral and gravitational forces.
  • the EP 1 982 091 B1 discloses a brake pad with a pad back plate with a structure arrangement which is formed by a recess in which a plurality of elevations with the same shape and geometry are arranged.
  • This brake pad has proven itself, but the stability and strength of the connection of the pad back plate with the friction mass should be increased.
  • the invention is therefore based on the object of specifying an improved brake lining for a disc brake.
  • Another object is to provide an improved brake pad set for a disc brake.
  • a brake pad of a disc brake for a motor vehicle in particular for a commercial vehicle, comprises a pad back plate which has a pad side with a friction mass and an application side opposite the pad side, the pad side being provided with a structural arrangement with a plurality of recesses and elevations arranged therein.
  • the structure arrangement of the covering side comprises different structure elements in shape and size.
  • the advantage is that the structural elements on the lining back plate make it possible to reduce the weight. Since these are not only created differently in shape and size, but are also placed in the appropriate place in a specific arrangement, the strength and thus the service life can be retained. In addition, there is the advantage of reducing costs by saving material.
  • a first group or all of the structural elements which differ in shape and size are arranged in two straight rows, which run parallel to a longitudinal direction of the covering back plate, and in an arrangement encircling these rows. The arrangement and the shape and size are based on a determined force curve in the backing plate.
  • the structural elements in the two straight rows and in the arrangement encircling these rows are arranged in an arrangement symmetrical to an axis that is perpendicular to the longitudinal direction of the covering back plate. This enables both the occurring force curve and the occurring excitation frequencies with respect to vibration behavior to be optimized and arranged in a noise-free manner.
  • the one row has three hexagonal honeycomb structure elements next to one another, with at least two further honeycomb structure elements being arranged in the row below such that a type of honeycomb structure results.
  • connecting webs are formed under the honeycomb structure elements, which can serve as reinforcing ribs.
  • the structural elements which differ in shape and size, can alternatively or additionally in two groups, which are symmetrical to an axis which runs perpendicular to the longitudinal direction of the covering back plate, on the covering side of the covering back plate be arranged. This is advantageous because it enables the most symmetrical possible force distribution.
  • further structural elements of the structural elements which differ in shape and size, are provided in edge regions, in the middle and in bearing regions of the brake lining back plate. This stiffens areas in which a high force profile can occur.
  • the structural elements continue to have pentagonal, quadrangular and triangular shapes with rounded corners. Since there are no sharp-edged corners, force jumps can be avoided with appropriate force peaks.
  • the bumps are circular, oval and / or polygonal, e.g. triangular, are formed and have depressions, both strength can be improved and a connection to the friction mass can be intensified.
  • the application side of the covering back plate has protruding pressure sections.
  • a further increase in strength and service life can result if the pressure sections protruding from the application side are connected by at least one web section.
  • the course of the web sections can advantageously be adapted to a determined course of force, e.g. in an embodiment in which the at least one web section runs in a straight line and parallel to a longitudinal direction of the covering back plate. In this way, however, curved courses are also possible.
  • the pressure sections are each divided into two semicircular ring segment pressure sections, in the center of which a circular depression is formed, which communicates on both sides with a straight depression between the associated ring segment pressure sections. This results in a further reduction in weight while maintaining strength.
  • the straight-line depressions can run in an imaginary straight connecting line in the longitudinal direction of the lining back plate through the center points of the ring segment pressure sections.
  • the application side has contact strip sections and support strip sections. This makes it possible to stiffen these areas and at the same time to enlarge the contact surface and the contact surface, ie to improve the transfer of forces.
  • the contact strip sections can be connected to the pressure sections or the ring segment pressure sections.
  • the backing plate is made in one piece from a metallic casting, since additional parts that would have to be added subsequently can thus be omitted.
  • a brake pad set for a disc brake for a vehicle in particular for a commercial vehicle, comprises at least one brake pad on the application side and at least one brake pad on the rear side, the brake pad application on the side being designed like the brake pad described above.
  • the webs of the structural arrangement are characterized in more detail below. Ideally, these should have good resistance to lateral forces and, at the same time, also have a good possibility for anchoring the friction mass. At the same time, the dimensioning should contribute to reducing the weight of the brake pad. Furthermore, a shear off of the friction mass should be prevented by the largest possible surface.
  • the following design variants bring further optimizations individually or in combination.
  • the thickness of the covering back plate can preferably be 6 mm with a height of the webs or a depth of the recesses of 2.5 mm.
  • the thickness of the topping plate is defined by the tensioning and lining-side surfaces, which form the majority of the edge-side region outside the structural arrangement.
  • the width of at least 50% of all webs of the structure arrangement, in particular of at least 50% of all webs with a uniform length, is at least 1.8 mm, preferably 2-4 mm.
  • the length of at least 50% of all webs of the structure arrangement in particular of at least 50% of all webs of the structure arrangement with a uniform width, can advantageously be at least 7 mm, preferably 8-17 mm.
  • the length of a web is determined on the basis of the points of intersection of the longitudinal axis of the respective web with the longitudinal axes of further webs.
  • the length of at least 50% of all webs can be between 120% to 300% of the thickness of the covering back plate and / or between 250% and 700% of the depth of the recess along their main direction of extension.
  • At least 50% of all webs can advantageously have a uniform length.
  • the recess can advantageously have a maximum depth t1, with which it is lowered with respect to the plane of the surface, the maximum depth being between 20 to 60%, in particular between 30 to 50%, of the thickness of the topping disk.
  • the elevations can advantageously have a height at which they protrude from the bottom surface of the recess, preferably vertically, the height being between 80% to 180%, in particular 120% to 165% of the depth.
  • a second web section can also advantageously run between the pressure sections and be arranged mirror-symmetrically to the first web section, based on an imaginary central axis M. This enables a higher mechanical stability to be achieved.
  • the second web section can advantageously have a width of at least 90%, preferably between 95 to 105%, of the first web section in order to increase the stability.
  • the surface of the lining side of the brake lining back plate can advantageously form an edge region encircling the structural order.
  • the edge area on all sections can advantageously have a minimum width of at least 3 mm, preferably 4-12 mm.
  • At least one elevation, in particular at least 50% of all elevations, of the structure arrangement can each have at least one depression, in particular a depression arranged centrally in the elevation. This improves the anchoring of the friction mass.
  • Each elevation can advantageously have the geometric shape of the respective recess in which the elevation is arranged. This can preferably be done in such a way that the elevation is at a constant distance from the edge of the recess.
  • a maximum of two elevations are arranged in each recess, but preferably at most one elevation is arranged.
  • the recesses can advantageously be less than 85%, preferably between 55-80%, and particularly advantageously between 70-78% of the area of the Take the structure arrangement in the top view of the covering side. The rest of the area is accounted for by the webs, i.e. their end faces. If edge surfaces of the recesses are visible in the two-dimensional plan view, these are assigned to the recesses. In the top view, additional surfaces, which result from height differences and due to the three-dimensional structure of the covering back plate, are omitted, but only the two-dimensional surface of the covering side which is shown when viewed in the clamping direction.
  • the recesses can take up less than 90%, preferably between 70-88%, in particular between 80-85% of the surface of the covering back plate in the plan view of the covering side.
  • the structure arrangement can take up more than 65%, preferably between 68% to 75% of the surface of the topping plate in the top view of the topping side.
  • the rest of the surface of the covering back plate is accounted for by an edge area, which accordingly ensures additional stability of the covering back plate.
  • the elevations can advantageously have at least two different geometric shapes and / or dimensions.
  • the symmetry of the geometric shape of a first elevation is different from the symmetry of the geometric shape of a second elevation, both elevations being part of the structure arrangement.
  • the elevations can have a different width, parallel to the plate plane.
  • the elevations can be rotationally symmetrical or axially symmetrical. In the case of angular elevations, these are axially symmetrical elevations and in the case of cylindrical elevations, these are rotationally symmetrical elevations.
  • the depressions provided in the elevations can also advantageously have different dimensions and / or geometry.
  • the elevations have no connection to the edge of the recess. Each elevation therefore has a minimum distance from an edge delimiting the recess.
  • a first brake lining according to the invention of a disc brake for a motor vehicle, in particular for a commercial vehicle, according to claim 1, has a lining back plate which has a lining side with a friction mass and an application side opposite the lining side, the lining side being provided with a structural arrangement with recesses and elevations , for a positive connection with the friction material.
  • the first brake pad according to the invention is designed for disc brakes with a braking torque of at most 30 kNm, the brake pad having a friction surface of more than 180 cm 2 , in particular 189 cm 2 , and a weight of the pad back plate of less than 1100 g, in particular 1050 g, having.
  • the second brake pad according to the invention is designed for disc brakes with a braking torque of at most 24 kNm, the brake pad having a friction surface of more than 160 cm 2 , in particular 164 cm 2 , and a weight of the pad back plate of less than 1050 g, in particular 1000 g.
  • the third brake pad according to the invention is designed for disc brakes with a braking torque of a maximum of 20 kNm.
  • the friction surface of the brake pad is more than 155 cm 2 , in particular 161 cm 2 , and the weight of the pad back plate is less than 1050 g, in particular 1000 g.
  • the fourth brake pad according to the invention is designed for disc brakes with a maximum braking torque of 19 kNm and has a friction surface of more than 150 cm 2 , in particular 154-161 cm 2 , and a weight of the pad back plate of less than 1050 g, in particular 1000 g .
  • the fourth brake pad according to the invention is designed for disc brakes with a braking torque of a maximum of 19 kNm and has a friction surface of the brake pad of more than 140 cm 2 , in particular 142.5 cm 2 , and a weight of the pad back plate of less than 1000 g, in particular 950 g, on.
  • the fifth brake pad according to the invention is designed for disc brakes with a maximum braking torque of 13 kNm and has a friction surface of the brake pad of more than 110 cm 2 , in particular 115 cm 2 , and a weight of the pad back plate of less than 950 g, in particular 900 g.
  • the sixth brake pad is designed for disc brakes with a maximum braking torque of 30 kNm and has a friction surface of the brake pad of more than 185 cm 2 , in particular 200.7 cm 2 , and a weight of the pad back plate of less than 1250 g, in particular 1200 g .
  • All of the aforementioned brake pads are based on the uniform inventive idea of creating a brake pad with reduced weight by providing a structural arrangement. Depending on the required braking torques and friction surfaces, other weights can be realized within the scope of the present invention.
  • Fig. 1 shows a schematic partial sectional view of a disc brake 1, for example a pneumatic disc brake 1.
  • the brake pads 12a, 12b are applied by means of an application device 11, which in a section of the brake caliper 4 (in Fig. 1 on the right side) is applied during a braking process with a clamping force, whereby they are pressed against the brake disc 2.
  • an application device 11 which in a section of the brake caliper 4 (in Fig. 1 on the right side) is applied during a braking process with a clamping force, whereby they are pressed against the brake disc 2.
  • an application device 11 preferably at the edge of the application device 11, one or more bearings 55 for axially displaceability of the brake caliper with respect to the brake disk can be arranged.
  • the application device 11 here comprises two brake rams 8, 8 ', which are screwed into a cross member 9, and a brake rotary lever 10, which interacts with the cross member 9 to overcome the working stroke. Because of the two brake stamps 8, 8 ', the disc brake 1 is a two-stamped one Disc brake 1.
  • the brake stamps 8, 8 ' interact with the brake pad 12a, which is also called the brake pad 12a on the application side.
  • the respective brake ram 8, 8 ' can be designed as an adjustable spindle unit, each with at least one adjusting spindle.
  • the other brake pad 12b is called the rear brake pad.
  • the brake pad 12a on the application side has a friction mass 5 and a pad back plate 6.
  • the friction mass 5 is applied to a pad side 6a of the pad back plate 6 and faces the brake disc 2.
  • the other side of the pad back plate 6 is referred to here as the application side 6b and faces the application device 11.
  • the application device 11 is above each with a brake ram 8, 8 ' a pressure piece 7, 7 'in contact with the application side 6b of the pad back plate 6 of the application-side brake pad 12a.
  • the brake pad 12a on the application side is acted upon by the application device 11 during braking processes with an application force in the direction of the brake disc rotation axis 2a.
  • the rear brake pad 12b is received in a back section of the brake caliper 4, which is not designated in any more detail, and has a friction mass 50 and a pad back plate 60.
  • the brake linings 12a, 12b are each received in the brake carrier 5 in a lining shaft between two brake carrier horns and held in the brake carrier 5. This is described in more detail below for the brake lining 12a on the application side.
  • the brake pad 12a on the application side is held with its pad backing plate 6 in the brake carrier 3 between two brake carrier horns 3a and 3'a in the direction of the brake disc rotation axis 2a.
  • the brake carrier horns 3a, 3'a project vertically upward from the brake carrier 3 from the plane of the drawing Fig. 1 forth.
  • the pad backing plate 6 contacts the inside of the brake carrier horns 3a, 3'a each with a lateral contact surface 6c, 6'c.
  • the brake pad 12a on the application side has support surfaces 6d, 6'd (see Fig. 2 ) in contact with correspondingly assigned conditions in its covering shaft.
  • a pad retainer is used to hold the brake pads 12a, 12b.
  • the disc brake 1 is in at the drawing level when the assigned vehicle is moving forward Fig. 1 of moved down up.
  • the brake disc 2 rotates about its brake disc axis of rotation 2a in a main direction of rotation.
  • the lower side of the brake caliper 4 is referred to as the inlet side
  • the upper side of the brake caliper 4 is referred to as the outlet side.
  • the brake carrier horn 3a is referred to as the inlet-side brake carrier horn 3a
  • the other of the lining shaft of the brake lining 12a on the application side is referred to as the outlet-side brake carrier horn 3'a.
  • components and assemblies that are assigned to the outlet side are identified with an apostrophe at the respective reference symbol.
  • Fig. 2 is a schematic view of an application side 6b of an embodiment of the pad back plate 6 of the application-side brake pad 12a.
  • Fig. 3 shows the closing side of the Fig. 2 in the perspective view, so that the elevations and depressions stand out even more clearly.
  • Fig. 4 shows a schematic view of the topping side 6a of the topping plate 6 according to Fig. 2 .
  • Fig. 5 is a schematic side view of a contact surface of the pad back plate 6 from the direction IV to Fig. 3 shown.
  • Fig. 6 shows a schematic sectional view along line VV of the topping plate 6 Fig. 2 .
  • the pad back plate 6 extends in a longitudinal direction L, which is on a plane A which is spanned by a surface 26 of the pad side 6a of the pad back plate 6 and which is in the installed state in the disc brake 1 ( Fig. 1 ) extends in the tangential direction to the brake disc 2.
  • the plane A runs in the drawing plane and is spanned by the vectors x and y.
  • An expansion of the lining back plate 6 in the longitudinal direction L is preferably 1.75 times to 2.4 times as large as the extent of the axis S, which is arranged perpendicular to the longitudinal direction L and on the plane A of the surface 26.
  • a thickness 40 of the topping plate 6 is in the sectional view along the axis S to Fig. 6 shown and runs in the installed state of the brake pad 12a in the direction of the brake disc rotation axis 2a.
  • the thickness 40 of the backing plate is limited by the surfaces 18 and 26.
  • the underside of the backing plate 6 has an arcuate recess 6h ( Fig. 4 ), which extends from the underside to the center of the backing plate 6 and is convex and symmetrical to the axis S. At each end of the arcuate recess 6h there is a straight section of the underside on each side. These sections are also symmetrical to the axis S. Each of these sections has the support surface 6d, 6'd mentioned above on the underside.
  • the contact surfaces 6d, 6'd run in a common plane of the underside at right angles to the contact surfaces 6c, 6'c and in the longitudinal direction of the lining back plate 6. Between the contact surfaces 6c, 6'c and the respective contact surface 6d, 6'd is one in each case Chamfer arranged.
  • the pad backing plate 6 can have a recess (not shown) for using a pad wear sensor. This recess can also be reworked.
  • the friction mass 5 is attached to the lining side 6a.
  • the application side 6b is in contact with the application device 11. First, the application side 6b in connection with Fig. 2 treated further.
  • the areas of the application side 6b of the lining back plate 6, with which the application device 11 is in contact via the pressure pieces 7, 7 ', are arranged as pressure sections 13, 13', preferably of the same design, symmetrically to the axis S on the application side 6b.
  • the pressure sections 13, 13 ' are annular in this embodiment.
  • Each printing section 13, 13 ' protrudes from the application side 6b by a certain amount from a surface 18 of the application side 6b and thus forms a respective elevation with a height 41 (see Fig. 5 ).
  • the surface 18 forms a main extension plane of the covering back plate 6.
  • the height 41 can be, for example, at least 1 mm, preferably 2 mm, particularly preferably 3 mm.
  • Each annular pressure section 13, 13 ' is provided with a recess 13a, 13'a, e.g. with a circular cross section, whereby a certain ring width 13b, 13'b of each annular pressure section 13, 13 'is defined.
  • the ring width 13b, 13'b can e.g. 1 to 2 cm.
  • the recesses 13a, 13'a serve to reduce the weight of the topping plate 6.
  • the pressure sections 13, 13 ' are connected in their upper third to a web section 14.
  • the web section 14 here runs between the pressure sections 13, 13 'straight in the longitudinal direction of the lining back plate 6 and has a web width 14a which is approximately half the outer radius of a printing section 13, 13'.
  • An imaginary center line M of the web section 14 runs to an imaginary connecting line V of the center points T1 and T2 of the pressure sections 13, 13 'at a distance which here corresponds to approximately half a radius of a pressure section 13, 13'.
  • the web section 14 forms a type of stiffening rib. Tests have shown that in this embodiment of the pad backing plate 6 a braking torque of the disc brake 1 of approximately 24 kNm can be achieved. If a second web section is additionally arranged in the lower region between the pressure sections 13, 13 ', the braking torque can be increased to 27 or 30 kNm, for example. This is in Fig. 7b shown, which are otherwise identical to Fig. 7a is.
  • the second web section (114) can preferably also have the aforementioned preferred web width and the preferred position relative to the imaginary center line M.
  • the web width 14a of the web section 14 can be e.g. be at least 1 cm.
  • the web portion 14 protrudes from a surface portion 18a, which lies in the same plane as the surface portion 18, by a certain amount. This dimension can be equal to the height 41 of the pressure sections 13, 13 ', smaller or larger than this. In one embodiment, the height 41 of the web section 14 can be at least 1 mm.
  • each pressure section 13, 13 ' is on its respective side, which is to the associated side of the covering back plate 6 with the contact surface 6c, 6'c has a short stiffening section 15, 15 'each connected to a contact strip section 16, 16'.
  • the short stiffening section 15, 15 ' extends in the imaginary connecting line of the center points of the pressure sections 13, 13' radially from the annular pressure section 13, 13 'to the associated contact strip section 16, 16' running at right angles thereto.
  • the stiffening section 15, 15 ' here has a width which corresponds approximately to the web width 14a of the web section 14.
  • the short stiffening sections 15, 15 'and the associated contact strip sections 16, 16' are symmetrical to the axis S and protrude from the surface 18 by a certain amount. This measure can e.g. correspond to the height 41 of the printing sections 13, 13 '.
  • a support strip section 17, 17 ' is provided on the associated section of the surface 18, which extends in the longitudinal direction of the backing plate 6 from the respective outer end at the chamfer to the center over approximately three quarters of the length the support surface 6d, 6'd extends.
  • each support strip section 17, 17 'in the direction of the axis S can be approximately half a web section width 14a here.
  • the extent of this extension can e.g. be at least 8 mm, preferably 8.4 ... 8.5 mm, particularly preferably 9 mm.
  • a tolerance of this dimension can e.g. are in the range of ⁇ 0.4 mm.
  • the support strip sections 17, 17 ' are arranged symmetrically to the axis S and project from the surface 18 by an identical or different amount in a manner similar to or in the same way as the contact strip sections 16, 16'.
  • the stiffening sections 15, 15 ', the contact strip sections 16, 16' and the support strip sections 17, 17 ' also form a stiffening of the lining back plate 6.
  • the dimensioning and shaping of the web section 14, the connection areas between it and the pressure sections 13, 13 ', the stiffening sections 15, 15', the contact strip sections 16, 16 'and the support strip sections 17, 17' are load and / or in accordance with the forces that occur shaped to optimize noise. Measurement results are used for this purpose, from which force profiles and / or excitation frequencies can be determined.
  • the pressure sections 13, 13 ', the web section 14, the stiffening sections 15, 15', the contact strip sections 16, 16 'and the support strip sections 17, 17' are each with a chamfer or a rounded transition to the surface 18, 18a of the covering back plate 6 Mistake. These rounded transitions can have a radius e.g. in a range of 3 ... 8 mm.
  • the contact strip sections 16, 16 'and the contact strip sections 17, 17' are respectively machined on their outer sides in order to enlarge the respectively associated contact surfaces 6c, 6'c or contact surfaces 6d, 6'd.
  • the covering side 6a has a surface 26 into which a structure arrangement 20 is molded.
  • the surface 26 forms edge region 66 that runs around the structural order, preferably flat.
  • the topping plate 6 has a uniform plate thickness with the thickness 40 in most of the peripheral edge region 66, in particular outside the anagen sections 16, 16 ', 17, 17'. However, there are also smaller edge sections that have a material thickness of up to 8.5 cm.
  • the structure arrangement 20 has a number of different structure elements 21, 21 ', 29', 30, 30 '. Arranged between the structural elements 21, 21 ', 29', 30, 30 'are sections of different widths and branches, which form stiffening sections 27, 27', web stiffening sections 27a-27d, 27'a-27'd and webs 28, 28 '.
  • the structural element 21 has an edge 21a and a recess 21b with a depth 43 ( Fig. 6 ) on.
  • the recess 21b has a bottom surface 21c, which preferably runs parallel to the surface 26.
  • the edge 21a surrounds the recess 21b all around and is provided with a chamfer and / or rounding 65. This structure is representative of all structural elements 21, 21 ', 29', 30, 30 '.
  • most of the structural elements 21, 21 ', 29', 30, 30 ' have dome-like elevations 22, 22'.
  • the elevations 22, 22 ' can be round, oval, triangular or polygonal, with a filled core and / or hollow on the inside due to depressions 22a, 22'a.
  • the depressions 22a, 22'a are to the friction mass 5 ( Fig. 1 ) pointing openly.
  • the elevations 22, 22 ′ protrude from the bottom surface 21c of the respective recess 21b up to the height of the respective edge 21a.
  • the elevations 22, 22 'can also protrude from the surface 26 by a certain amount beyond the respective edge 21a. This dimension can be, for example, in a range of preferably 1 to 2 mm.
  • the elevations 22, 22 'in Fig. 4 occupy between 15 to 50%, in particular 20-30%, of the area of the recess 21b.
  • the area of the recess is the area which the recess occupies at the level of the surface 26.
  • Surfaces, for example the edge surface, which run perpendicular to surface 26 are not taken into account here and surfaces which are oblique or curved to the plane of the surface 26 run, for example in the case of the roundings 65, only the vectorial portion which runs parallel to the plane of the surface 26 is taken into account.
  • the recess 21b has the depth 43 with which it is lowered relative to the plane of the surface 26. This maximum depth can preferably be between 20 to 60% of the plate thickness 40.
  • the elevations 22, 22 ' also have a different width 71 and 72.
  • a minimum distance 95 is defined by the narrowest point or the shortest distance between the elevation 22 and the edge 21a of the recess 21b. It can preferably be at least 50%, particularly preferably 80-400%, of the depth of the recess.
  • the elevations 22, 22 ' have a height 70 with which they protrude from the bottom surface 21c.
  • the height 70 can preferably be between 120% to 165% of the maximum depth 43.
  • the webs 28, 28 ' preferably have a width 80 along a section of at least 50% of their respective main direction of extension. This width 80 is preferably between 80-130% of the depth 43 of the recess 21b.
  • the end faces of the webs 28, 28 ′ are preferably located on a plane A together with the surface 26.
  • the length 90 of at least 50% of all webs 28, 28 ', in particular of at least 50% of all webs 28, 28' with a uniform width, along their respective main direction of extension can preferably be between 2.5-7 times the depth 43 of the recess 21b .
  • At least 50% of all webs preferably have a uniform length 90.
  • "Uniform" means that the length of the corresponding webs deviates from one another by less than 10%. The same applies to the width.
  • the width 80 of at least 50% of all webs of the structure arrangement, in particular of at least 50% of all webs with a uniform length 90, can preferably be at least 1.8 mm, preferably 2-4 mm.
  • the length 90 of at least 50% of all webs of the structure arrangement can preferably be at least 3 mm, preferably 4-6 mm. All structural elements 21, 21 ', 30, 30' are polygonal, with all corners being rounded.
  • the structural arrangement 20 of the structural elements 21, 21 ', 29', 30, 30 ' has two middle rows R1, R2, which run in the longitudinal direction of the covering back plate 6.
  • the upper middle row R1 has three hexagonal honeycomb structure elements 30, 30 'side by side.
  • Two further honeycomb structure elements 30 are arranged in the row R2 below, so that a type of honeycomb structure results which is symmetrical to the axis S.
  • the axis S here runs through the middle honeycomb structure element 30 of the upper row R1 and below it through a web section which separates the two honeycomb structure elements 30 of the lower row R2.
  • a pentagonal structural element To the right of one of the two honeycomb structural elements 30 of the lower row R2 is a pentagonal structural element, the left half of which forms half a honeycomb structural element, the upper corner point of the right half being further up. Further to the right of this pentagonal structural element is a pentagonal structural element which is mirror image of this and on the right side of which is an irregular quadrangular structural element. This arrangement is located symmetrically to the axis S on the left side of the left honeycomb structure element 30 in the lower row R2.
  • All structural elements of the upper and lower rows R1, R2 have elevations 22, 22 'with depressions 22a, 22'a, imaginary lines of the two rows R1, R2 each running through the center points of the elevations 22, 22'.
  • the elevations 22, 22 'of the external irregular quadrangular structural elements are circular, the other elevations 22, 22' being triangular in shape.
  • the elevations 22, 22 ' serve not only for stiffening, but also for improving the fastening of the friction mass 5 on the lining side 6a.
  • This arrangement of the middle rows R1, R2 is surrounded all around with the structural elements 21, 21 'in an arrangement symmetrical to the axis S. Only a structural element 29 'in the upper left area is present as a single element. Except for three "half" honeycomb structural elements in the middle below the lower row R2 and apart from the structural element 29 ', all other structural elements 21, 21' of the surrounding arrangement are each provided with an elevation 22, 22 '.
  • Three structural elements 21, 21 'of the circumferential arrangement are arranged one above the other in the lateral edge regions, the uppermost structural element 21, 21' with two further structural elements 21, 21 'each being arranged on an arc which runs in each case from the edge to the axis S. is.
  • the structural elements 21, 21 'of the surrounding arrangement each have an edge section of their respective edge 21a, 21'a, which essentially runs like the section of the edge of the covering backing plate 6 lying next to it.
  • the outer edge sections 25 of the structure elements 21, 21 'arranged in the lower one above the other in the edge regions in each case parallel to the chamfers with the side surfaces 6f.
  • the central structural elements 21, 21 'of the structural elements 21, 21' arranged one above the other in the edge regions have edge sections 25a which run parallel to the edges with the lateral contact surfaces 6c, 6'c.
  • relatively large-area stiffening sections 27, 27 ' are formed, which are combined with further web stiffening sections 27a, 27'a and 27b, 27 'b connected and in areas of the pressure sections 13, 13' of the application side 6b of the lining back plate 6, in particular in the area of the outer diameter of the pressure sections 13, 13 ', on which the brake pistons 8, 8' of the application device 11 act during braking operations and are correspondingly high Forces can occur.
  • a stiffening is formed which is able to effectively distribute the forces occurring in the lining back plate 6 in such a way that a reduction in overload and risk of breakage and an increase in the service life can be achieved.
  • Figures 8a - 8e represent a schematic view of the topping side 6a of a second variant of the topping plate 6.
  • the structure arrangement 20 is arranged symmetrically to the axis S on the covering side 6a of the covering back plate 6.
  • the structural arrangement 20 here has structural elements 29, 29 ', 29a, 29'a, 31, 31', 31a, 31'a, 32, 32 ', 32a, 32'a, 33, 33', 34, 34 ', 35 , 35 ', 36, 36', 37 and 37 'of different shape and size.
  • these structural elements can be formed with depressions with circumferential edges and with or without inner elevations.
  • the elevations can have, for example, trapezoidal shapes or other shapes.
  • the elevations in the recesses 21 "b of the structural elements 29, 29 ', 29a, 29'a, 31, 31', 31a, 31'a, 32, 32 ', 32a, 32'a, 33, 33' , 34, 34 ', 35, 35', 36, 36 ', 37 and 37' uniformly labeled 22 ".
  • the bottom surface of the recesses 21 "b are designated 21" c.
  • Each elevation 22 is at a minimum distance from an edge 21" a delimiting the recess.
  • This minimum distance can preferably be at least 50%, particularly preferably 80-400%, of the depth of the recess It goes without saying that the geometry and dimension of the depressions 21 ", the bottom surfaces 21" c and the elevations 22 "and / or the depressions 22" a located therein can differ from one another in terms of geometry and dimensioning
  • seven structural elements 31, 31a, 32, 32a, 33, 34 and 34a are arranged in a circle around a circular structural element 35 on the right half of the covering side 6a.
  • a center point of the inner structural element 35 lies in the axis through the center point of the pressure section 13 located on the application side 6b and thus in the axis of the associated brake plunger 8.
  • the arrangement located on the circular line lies in the region of the circular ring of the pressure section 13.
  • the circular structural element 35 arranged centrally in this way is surrounded by a hub-like ring web section 28a.
  • the ring web section 28a is connected in a spoke-like manner to seven spoke web sections 28b, which extend radially from the ring web section 28a and are arranged at substantially equal angular distances from one another.
  • the spoke web sections 28b each run between the circularly arranged structural elements 31, 31a, 32, 32a, 33, 34 and 34a and are connected at their imaginary outer end to a further ring web section 28c.
  • a width of the spoke land portions 28b increases with the distance from the inner ring land portion 28a to the outside.
  • the further ring web section 28c surrounds the circularly arranged structural elements 31, 31a, 32, 32a, 33, 34 and 34a. In this way, a kind of spoke wheel arrangement is formed, the structural elements 31, 31a, 32, 32a, 33, 34 and 34a lying in the spaces between the spoke web sections 28b and ring web sections 28a, 28c.
  • each of the circularly arranged structural elements 31, 31a, 32, 32a, 33, 34 and 34a is essentially trapezoidal, with the edge sections on the ring web sections 28a and 28c each correspond in an arc to the diameter of the respective ring web section 28a, 28c.
  • the structural elements 31, 31a are arranged symmetrically to the latter and have a trapezoidal design.
  • the imaginary longitudinal axis of the reference spoke web section 28b1 extends diametrically opposite through the likewise trapezoidal structural element 33, the lower edge section of which points towards the arcuate recess 6h.
  • the two structural elements 32, 32a which are also symmetrical to a spoke web section 28b, are also symmetrical to the imaginary longitudinal axis of the reference spoke web section 28b1 to the opposite two structural elements 34, 34a.
  • the structural element 36 is provided in the lateral region of the contact surface 6c.
  • a straight edge section of the structural element 36 runs in the direction of the axis S parallel to the contact surface 6c.
  • the opposite edge section is concentric with the outer radius of the structural element 32 lying next to it on the circular path and is separated from it by the ring web section 28c lying in between.
  • the backing plate 6 has no chamfers, but notches not specified in more detail at the lower corners between the contact surfaces 6c, 6'c and the contact surfaces 6d, 6'd.
  • a spoke web section 28b which widens further up to the axis S, runs between the structural elements 29, 29a and is connected to a central web 28 running in the axis S.
  • the outer edge sections of the structural elements 29, 29a run in accordance with the edge contours of the covering backing plate 6 located in their vicinity.
  • An upper left corner, facing the axis S, of the structural element 19 is recessed due to an opening in the backing plate 6.
  • the structural elements 29 ', 29'a, 31', 31'a, 32 ', 32'a, 33', 34 ', 34'a, 35', 36 'and 37' on the left half of the covering side 6a are mirror images to the axis S to the structural elements 29, 29a, 31, 31a, 32, 32a, 33, 34, 34a, 35, 36 and 37 of the right half.
  • the above description also applies to the left half.
  • Fig. 9 shows a first variant, in which the web section 14 between the pressure sections 13, 13 'has a slightly curved shape.
  • the transitions of the web section 14 to the respective pressure section 13, 13 ' are provided with larger radii than in the first exemplary embodiment according to FIG Fig. 2 . This is also the case with the transitions between the pressure sections 13, 13 'and the stiffening sections 15, 15'.
  • FIG Fig. 10 A second variant in the construction of the application side 6b is shown in FIG Fig. 10 shown.
  • the annular pressure sections 13, 13 'of the first embodiment are according to Fig. 2 each divided into two semicircular ring segment pressure sections 38, 38a and 38 ', 38'a.
  • a circular recess 38b, 38'b is formed in the center thereof, each with a rectilinear recess on both sides 38c, 38'c communicates between the associated ring segment pressure sections 38, 38a and 38 ', 38'a.
  • the straight-line depressions 38c, 38'c run in an imaginary straight connecting line in the longitudinal direction of the lining back plate 6 through the centers of the ring segment pressure sections 38, 38a and 38 ', 38'a.
  • the upper ring segment pressure sections 38, 38 ' are each connected on their outside by a curved web section 39, 39'.
  • the web portion 39, 39 ' is cranked in the middle in the region of the axis S around a lower region of an unspecified opening in the pad backing plate 6 with a web portion 39b and runs close to the upper edge arc of the pad backing plate 6, but with a smaller one Arc radius.
  • Another, lower web section 39a, 39'a connects the lower ring segment pressure sections 38a, 38'a on their lower outer sides and runs concentrically to the convex recess 6h at the lower edge of the lining back plate 6 at a distance which is approximately as large as the width of the Web section 39a, 39'a.
  • connection points of the lower web section 39a, 39'a with the lower ring segment pressure sections 38a, 38'a each lie diametrically to the connection points of the upper web section 39, 39 'with the upper ring segment pressure sections 38, 38'.
  • a respective imaginary line through these connections forms an angle of approximately 20 ° with the axis S.
  • a width of the web sections 39, 39 ', 39a, 39'a corresponds here to approximately one third of the widths of the ring segment pressure sections 38, 38', 38a, 38'a.
  • Stiffening sections 15, 15 ' are not present in this variant.
  • the third variant after Fig. 11 demonstrates how the variant Fig. 9 upper and lower ring segment pressure sections 38, 38 ', 38a, 38'a, which by two web sections 14, 14b are interconnected. In contrast to this, however, the two web sections are wider, approximately almost as wide as the width of the ring segment pressure sections 38, 38 ', 38a, 38'a.
  • the upper web section 14 here runs between the two upper ring segment pressure sections 38, 38 ′ essentially concentrically to the edge arch of the covering back plate 6 below the opening of the covering back plate 6, which is not described in any more detail.
  • the lower web section 14b is also curved and concentric with the convex recess on the underside of the lining back plate 6.
  • the lower web section 14b runs between the lower ring segment pressure sections 38a, 38'a, connects them, penetrates them and occurs with its respective end as it continues Arch again as a respective web section 14c, 14'c, which connects the respective lower ring segment section 38a, 38'a with the associated support strip section 17, 17 '.
  • Fig. 13 a fifth variant is shown, which follows the fourth variant Fig. 10 corresponds to the missing web sections 14, 14b.
  • Table 1 Backing plate weight and use Weight surface Braking torque Full area [G] [cm 2 ] [kNm] [cm 2 ] 1050 189 30th 196 950 142.5 19th 148 900 115 13 119 1000 164 24th 173 1000 161 20th 168 1200 200.7 30th 208 1000 154-161 19th 171
  • full surface in the context of the present invention defines a surface in the state of wear. When worn, the friction mass is only 2 mm thick.
  • the support strip sections 17, 17 ' are also connected to the pressure sections 13, 13' via corresponding stiffening webs or ribs.
  • the structural elements can be designed as the recesses 21b, 21 "b, the recesses having the elevations 22, 22 ', 22", which in a plan view perpendicular to the plane A of the surface 26 of the surface backing plate, between 15 to 50%, in particular between 20 % and 30%, occupy the area of the recess 21b.
  • the recess 21b, 21 “b can have a maximum depth 43, with which it is lowered relative to the plane A of the surface 26, the maximum depth 43 being between 20 to 60%, in particular 30 to 50%, of the thickness 40 of the covering back disk 6 .
  • the elevations 22, 22 'can have a height 70 with which they protrude, preferably vertically, from the bottom surface 21c of the recess 21b, the height 70) between 80% and 180%, in particular between 120% and 165%, of the depth 43 is.
  • At least 50% of the webs 28, 28 'can have a width 80 along a section of at least 50% of their main direction of extension, which is between 70-130% of the depth 43 of the recess 21b.
  • the length 90 of at least 50% of all the webs 28, 28 ′ can be between the 120% and 300% of the thickness 40 of the covering back plate along their main direction of extension.
  • At least 50% of all webs can have a uniform length 90.
  • the elevations 22, 22 ', 22 " can be spaced at a minimum distance 95 from an edge 21a, 21" a delimiting the recess 21b, 21'b, 21 "b).
  • the web section 14 can run as the first web section between the pressure sections 13, 13 'with a web width 14a which is between 40-55% of an outer radius of one of the pressure sections 13, 13'.
  • a second web section 114 can run between the pressure sections 13, 13 'and can be arranged mirror-symmetrically to the first web section 14, with respect to an imaginary central axis M.
  • the second web section 114 can have a width of at least 90%, preferably between 95 to 105%, of the first web section 14.
  • the surface 26 of the lining side of the brake lining back plate 6 can be designed as an edge region 66 running around the structural order.
  • the edge region 66 can have a width of at least 3 mm, preferably 4-12 mm, in all sections.
  • At least one elevation 22, 22 ', 22 ", in particular at least 50% of all elevations 22, 22', 22", of the structure arrangement can each have at least one depression 22a, in particular one depression arranged centrally in the elevation 22, 22 ', 22 ", exhibit.
  • the elevations 22, 22 ', 22 " can have at least two different geometric shapes and / or dimensions.
  • Each elevation can have the geometric shape of the respective recess 21b, 21'b, 21 “b, in which the elevation 22, 22 ', 22" is arranged, preferably in such a way that the elevation 22, 22', 22 "in a constant Distance from the edge 21a, 21'a, 21 "a of the recess 21b, 21'b, 21” b is spaced.
  • the recesses 21b, 21'b, 21 "b can occupy less than 85%%, preferably between 55-80%, in particular between 70-78% of the area of the structure arrangement 20 in the plan view of the covering side 6a.
  • the recesses 21b, 21'b, 21 "b can take up less than 90%, preferably between 70-88%, in particular between 80-85% of the surface of the topping plate 6, 60 in the plan view of the topping side 6a.
  • the structure arrangement 20 can take up more than 65%, preferably between 68% to 75%, of the surface of the topping plate 6, 60 in the top view of the topping side 6a.
  • Both brake pads 12a, 12b can be designed in the manner according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
EP17706458.1A 2016-02-26 2017-02-21 Bremsbelag einer scheibenbremse und bremsbelagsatz Active EP3420243B1 (de)

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PL17706458T PL3420243T3 (pl) 2016-02-26 2017-02-21 Okładzina hamulcowa hamulca tarczowego i zestaw okładzin hamulcowych

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DE102016103396.0A DE102016103396B4 (de) 2016-02-26 2016-02-26 Bremsbelag einer Scheibenbremse und Bremsbelagsatz
PCT/EP2017/053887 WO2017144441A2 (de) 2016-02-26 2017-02-21 Bremsbelag einer scheibenbremse und bremsbelagsatz

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EP (1) EP3420243B1 (pt)
CN (1) CN109073017B (pt)
BR (1) BR112018017244B1 (pt)
DE (1) DE102016103396B4 (pt)
DK (1) DK3420243T3 (pt)
ES (1) ES2803214T3 (pt)
HU (1) HUE051447T2 (pt)
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CN111322334B (zh) * 2020-03-09 2021-02-26 西南交通大学 一种融合界面和加载优化及故障监测的高速列车制动系统
CN114517816B (zh) * 2022-02-18 2023-11-14 上海永环摩擦材料海安有限公司 一种可实现降噪摩擦的曳引机摩擦片

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DK3420243T3 (da) 2020-06-15
DE102016103396A1 (de) 2017-08-31
HUE051447T2 (hu) 2021-03-01
US20180363718A1 (en) 2018-12-20
DE102016103396B4 (de) 2022-09-15
PT3420243T (pt) 2020-06-04
WO2017144441A3 (de) 2017-10-19
EP3420243A2 (de) 2019-01-02
BR112018017244A8 (pt) 2022-05-17
CN109073017B (zh) 2020-11-03
ES2803214T3 (es) 2021-01-25
BR112018017244B1 (pt) 2022-05-31
CN109073017A (zh) 2018-12-21
WO2017144441A2 (de) 2017-08-31
PL3420243T3 (pl) 2020-10-19
US10927909B2 (en) 2021-02-23
BR112018017244A2 (pt) 2019-01-15

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